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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Meta logo
Meta
Hard
Data Engineer

Evaluate impact of short videos in feed

Scenario You work on a social app’s main News Feed. The team wants to introduce a short-form video module ("Reels") into the feed. Prompt 1. How would...

System DesignExperiment Design (A/B Testing)Launch Evaluation
20
1
181 people solved
Dec 1, 2025
Axon logo
Axon
Medium
Software Engineer

Design a Test Orchestration System

Design a test orchestration service for an engineering organization. The service should let users define different kinds of tests, schedule when they ...

System DesignJob Scheduling & WorkflowsSystem Design Fundamentals
18
0
142 people solved
Nov 18, 2025
Waymo logo
Waymo
Easy
Data Scientist Locked

How validate a driving simulation is realistic?

This question evaluates skills in statistical validation of simulations, distributional comparison between real and simulated driving data, scenario-s...

Analytics & ExperimentationHypothesis Testing
35
0
341 people solved
Jan 17, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Select next Hangman letter

Given the current state of a Hangman game, implement a function that selects the next letter with the highest likelihood of appearing in the secret wo...

Coding & AlgorithmsString AlgorithmsArrays & Strings
29
1
282 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Data Scientist

Traverse an Org Chart by Level

You are given an organization's reporting structure as a flat list of employee-manager relationships. Exactly one employee is the root (the CEO) and h...

Coding & AlgorithmsTreesStacks & Queues
21
1
193 people solved
Feb 25, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer

Behavioral: Resolving a Team Conflict and Working Through a Constraint

Answer two common behavioral questions. They were asked in a short behavioral session of about 25 to 30 minutes, so each answer should be concise. Cla...

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
0
0
6 people solved
Jul 16, 2026
Fidelity logo
Fidelity
Medium
Software Engineer

Write good tests and define integration tests

Write good tests and define integration tests Test Design: Definitions, Trade-offs, and Best Practices Context You're building a small service for a t...

Software Engineering Fundamentals
6
0
70 people solved
Jul 31, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Sort Three Categories In Place

You are given an array items containing only the values 0, 1, and 2, where each value represents a category. Rearrange the array in-place so that all ...

Coding & Algorithms
3
0
39 people solved
Apr 18, 2026
IBM logo
IBM
Hard
Software Engineer

Design a multithreaded CPU 1D convolution

Question Design and implement a multithreaded CPU version of the valid 1‑D convolution. Valid convolution produces an output of length M = N − K + 1, ...

System DesignConcurrencyArrays & Strings
16
0
159 people solved
Aug 14, 2025
Meta logo
Meta
Easy
Software EngineerSenior+

Design a location-based radius top-K search

Design a location-based search service. Input: - latitude, longitude - radius (meters) - K Output: - The top K locations within the radius. The term “...

System DesignGeo & Delivery SystemsStorage & Sharding
37
0
326 people solved
Mar 11, 2026
Airbnb logo
Airbnb
Medium
Software Engineer

Check inorder subsequence and edit tree minimally

Given a binary tree whose nodes store integers and an array target, determine whether target is a subsequence of the tree's inorder traversal (element...

Coding & AlgorithmsTreesDynamic Programming
26
1
240 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Software Engineer

Implement BFS-based maze solver

Maze Printing and BFS Solver You are given a 2D grid representing a maze. Each cell of the grid is one of: - '#' – wall (cannot be passed) - '.' – emp...

Coding & AlgorithmsGrids & MatricesDebugging
39
0
379 people solved
Dec 7, 2025
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer

Answer common behavioral prompts

Answer common behavioral prompts Behavioral & Leadership Interview — Software Engineer (Onsite) Context: You are interviewing for a Software Engineer ...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
15
0
135 people solved
Aug 1, 2025
Capital One logo
Capital One
Medium
Data Scientist

Refactor code and enforce robustness

Code Review and Refactor: Summing a CSV Column Context You are reviewing a short Python script that sums a numeric column from a CSV using pandas. You...

Coding & AlgorithmsCode Quality & MaintainabilityPandas & Python Data
9
0
145 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Implement Review Content Moderation

This question evaluates a candidate's ability to implement consistent server-side content moderation and stateful persistence handling in a backend se...

Software Engineering FundamentalsCode Quality & MaintainabilityApplication Security
13
0
147 people solved
May 24, 2026
Oracle logo
Oracle
Medium
Backend EngineerSenior+ Locked

Add One to an Integer Stored as Digits Without ArrayList

Add one to an unsigned integer stored as a fixed-size decimal digit array without converting the value or using a dynamically appended collection, inc...

Coding & Algorithms
3
0
28 people solved
Aug 10, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Handle Workplace Conflict and Criticism

Practice discussing workplace conflict and criticism with fictional examples of shared evidence, changed decisions, respectful feedback, and follow-th...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
0
0
11 people solved
Sep 7, 2026
Modular logo
Modular
Hard
Software Engineer

Find the Critical Path

You are given a project represented as a directed acyclic graph of tasks. Each task has: - a unique task name - a list of prerequisite task names - a ...

Coding & Algorithms
3
0
49 people solved
Apr 9, 2026
Dropbox logo
Dropbox
Medium
Software Engineer

Implement feedback for word guessing game

You are implementing the core logic for a simple word-guessing game. There is: - A dictionary of valid words: a list of distinct lowercase strings, al...

Coding & AlgorithmsArrays & Strings
9
0
173 people solved
Nov 1, 2025
Capital One logo
Capital One
Easy
Data ScientistSenior+ Locked

Clean and Merge Housing Data

This question evaluates data cleaning, type coercion, robust merge operations, and missing-data imputation skills within tabular datasets, emphasizing...

Data Manipulation (SQL/Python)Pandas & Python DataData Cleaning & Wrangling
6
0
111 people solved
Feb 28, 2026
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